# CITS5502 Software Processes

## Question:

The attached sheet contains data adapted from an actual test process. The process had two stages: finding defects and  fixing defects. The table  represents  the  rate of finding defects  by one competent tester working 25 hours per week over a twenty­week period and 300 detects were discovered in that time. They were classified as having either a major impact or a minor effect on the usability of the system. These defects can be hard or easy to fix. The hard ones will take five hours to fix and the easy one can be done in two hours (on average). You are the project managerwith three experienced  software engineers (each working 25 hours perweek) available  for testing the system and fixing the defects. The users of the system havestated that the majordefects are “seven times as damaging” on average as the minor ones.

• Clearly state your objectives  and any assumptions that you have to make in the simulations.
• Discuss about the measurement process and the data. What other data might have been collected?
• Fit defect detection curves to the data. Do they fit well? How many defects do you estimate are still in the system after the 300 defects have been found? Choose at least three appropriate metrics for measuring the test and repair process.

Some possible metrics for illustrating the progress in each week (in each case the smaller the value, the better) are:

[1] Estimate of number of unfixed defects (found & unfound) still in the software,

[2] Total importance of found defects still to be fixed ,

[3] Average time in queue of major defects still to be fixed,

[4] Ratio of defects fixed to defects found.

Discuss about how you allocate your staff to test for (i.e., to find) defects and to fixdetects in each week. For instance, one allocation of your staff might be to have one  person testing and the other two fixing the defects. However, because you have limited resources (75 man hours per week), you cannot fix all the defects at once.Some repair strategies might be:
• Solve them in a random order
• Solve the easy ones first
• Solve the hard ones first
• Solve the major ones first
• Solve the minor ones first
• Solve them in the order in which they are found (FIFO)
• Produce a table (or preferably a graph – Excel is acceptable) of each of your metrics.

Choose   any   four   of   the   above   six   strategies   for   your   defect   testing   and   fixing allocation. To reduce the number of graphs you need to produce, you can overlaid your four chosen strategies onto the same table (or graph).

Include a discussion section that relates your results to system reliability and also customer   satisfaction.   Consider   the   use   of  your   resources.   How  could   the  performance of your team be improved if a tester was shifted to repair activities for a few weeks? ­ or if one of the repair engineers was given the task of testing for a fewweeks? If you wished to minimize the time major defects went unfound and unfixed, what would your optimum allocation of staff be?

### Cite This Work

My Assignment Help (2021) CITS5502 Software Processes [Online]. Available from: https://myassignmenthelp.com/free-samples/cits5502-software-processes/system-defects-tester-results-analysis.html
[Accessed 02 February 2023].

My Assignment Help. 'CITS5502 Software Processes' (My Assignment Help, 2021) <https://myassignmenthelp.com/free-samples/cits5502-software-processes/system-defects-tester-results-analysis.html> accessed 02 February 2023.

My Assignment Help. CITS5502 Software Processes [Internet]. My Assignment Help. 2021 [cited 02 February 2023]. Available from: https://myassignmenthelp.com/free-samples/cits5502-software-processes/system-defects-tester-results-analysis.html.

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